... ,ASME,API Certification:API/ISO9000 10 inch sch100 jis standard steel pipe Type steel pipePipe Size1/2"—48" (DN15-1200)Wall ThicknessSCH10,SCH20 ... , drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industrySurface Black painting, varnish paint, anti rust oil ...